This is the first 1,000 characters of 866 words (3.46 pages) in the essay titled Engines
Engines are found all around our very day lives. They are found in our cars, trucks, vans and motorcycles. Almost all vehicles run on the basic combustion engine. An internal- combustion engine is any type of machine that gets mechanical energy from the expenditure of the chemical energy of fuel burned in a combustion chamber. There are four main types of internal- combustion engines, they are: the Otto - cycle engine, the diesel engine, the rotary engine and the gas turbine. The Otto-cycle engine is usually used in gasoline engines found in cars and airplanes. The diesel engine runs on a different principle and mainly uses oil as fuel. It is used in electric-generating and marine-power plants, in trucks, buses and some cars. Both diesel and Otto-cycle engines are made in two-stroke and four-stroke cycle models.
The first piston engine was developed in 1690 by a French physicist and inventor Denis Papin and it was used for pumping water. Hi...
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